At this point, I’m wondering why Michele Bachmann wouldn’t run for president. Unlike Sarah Palin — who would be reduced by a presidential campaign that fizzled — Bachmann has all upside: getting more national exposure and building a bigger fundraising base. Any showing that beats low expectations will help her, and she could be a real force in Iowa. If Palin doesn’t run, Bachmann is a natural contender for a piece of that slot in the field.